Global Patent Index - EP 1485751 A1

EP 1485751 A1 2004-12-15 - ELECTRO-ABSORPTION MODULATOR WITH BROAD OPTICAL BANDWIDTH

Title (en)

ELECTRO-ABSORPTION MODULATOR WITH BROAD OPTICAL BANDWIDTH

Title (de)

ELEKTROABSORPTIONSMODULATOR MIT GROSSER OPTISCHER BANDBREITE

Title (fr)

MODULATEUR A ELECTRO-ABSORPTION A GRANDE LARGEUR DE BANDE OPTIQUE

Publication

EP 1485751 A1 (EN)

Application

EP 03712347 A

Priority

  • GB 0301083 W
  • GB 0206226 A

Abstract (en)

[origin: WO03079100A1] An electro-absorption modulator comprises a waveguiding structure including a plurality of sections (201 - 205), each section having a different bandgap and at least one electrode for applying electrical bias to the section. An optical signal passing through the waveguiding structure may be modulated using the plurality of separately addressable sections, by applying a modulation signal to one or more of the sections, and electrically biasing one or more of the sections with a bias voltage, in such a manner as to achieve a predetermined level of any one or more of the parameters chirp, modulation depth and insertion loss.

IPC 1-7 (main, further and additional classification)

G02F 1/017

IPC 8 full level (invention and additional information)

G02F 1/00 (2006.01); G02F 1/017 (2006.01); G02F 1/015 (2006.01)

CPC (invention and additional information)

B82Y 20/00 (2013.01); G02F 1/01708 (2013.01); G02F 2001/0157 (2013.01); G02F 2001/0175 (2013.01); G02F 2201/16 (2013.01)

Citation (search report)

See references of WO 03079100A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

EPO simple patent family

WO 03079100 A1 20030925; AU 2003216812 A1 20030929; CA 2479397 A1 20030925; CN 1332241 C 20070815; CN 1653375 A 20050810; EP 1485751 A1 20041215; GB 0206226 D0 20020501; GB 0421265 D0 20041027; GB 2401690 A 20041117; GB 2401690 B 20050727; JP 2005521079 A 20050714; RU 2004130500 A 20050510; RU 2317575 C2 20080220; US 2005206989 A1 20050922; US 2009147352 A1 20090611

INPADOC legal status


2010-03-24 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20091001

2005-06-29 [RAP1] TRANSFER OF RIGHTS OF AN APPLICATION

- Owner name: INTENSE LIMITED

2005-02-09 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20041227

2004-12-15 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20041006

2004-12-15 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

2004-12-15 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: AL LT LV MK